Dynamo-electric machine.



H. GBESENHNBR. DYNAMG ELEGTRXG LAGHINE,

APPLICATION FILED HOV. 11, 1907,

Patented Jau. 30, 1912.

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H. GMSBNHUNEE, DYNAMO ELECTRIC MAGBNE-. APELIOATXON YILEI) NOV-11, 1907.

Patented Jan. 30, 1912.

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.HENRY GEISENHNER, 0F SCHENECTADY. NEW YORK. ASSIGNOR TO GENERAL ELECTRIC COMPANY, A 'CORPORATION OF NEW YORK. v

D YNAllU-ELECTRIC MACHINE.

Specification of Letters Patent. llat cntcd Jan. 30.1591 2.

Application led November 11, 1907. Serial No. 401.546.

To all Awho/m it may concern Be it known that l. HENRY Guisnxnoxiia. a citizen of the United States.,residing at Schenectady, county ot' Schenectady. State of New York. have invented certain new and useful. improvements in Dynamo-Electric lllachines. ot which the following is a specification.

-My invention relates to d jvnanuelectric machines and particularly to a combined space. block and cooling means therefor and has for its object, the dissipation of the heat generated in the stationary members' ot dynamo-electric machines, due to the iron and copper losses therein.

The. laniinations of electrical machines are heated by eddy-currents and hysteresis di rectly and by some of the heat generated in the windings by conduction. The usual manner of carrying away this heat is by separating the laininations into bundles and inserting spacefblocks. Air may be forced under pressure through the ducts 'Formed by the space blocks or the rotating element alone maybe relied upon to set up a draft.I

tor cooling the laminations However, in large machines. it is very dilticult to get an air circulation sutlicientto keep the ternperature of the iron within a safe upper limit to prevent rapid aging. To this end so inclose the Aducts that a cooling fluid, such as water, may be. forced through them, whereby the laininations will be cooled and. thus most ot the heat generated in the Inachine will be carried olf directly by conduction.

lThe various forms of novelty which charv acterize my invention are pointed out with particular-ity in the claims annexed tc and'` forming a partJ otl this specification. For a better understanding of my invention, however, reference may be had to the following description taken in connection with the Vaccompanying drawing, in' which nection with which l have chosen lo illustrate my invention has the trame l. which is supported by the base The laminalionsI Il are held in position in the usual manner. and 'the distributed winding l is embedded in slots in the laminatious. The revolvingfield 5 is shown as a: smooth core rotor. These )arts may ta k Y* any usual or preferred forms as my invention docs not depend upon these parts. The bundles ot laminations are separated by the sectional space block (l. as illustrated in Fig. I have preferred to' show eight sections to each space block.

opening 7 at one end thereofalul'an outlet opening 8 at thc other end thereof. The inlet openings are vertically above one another as are the outlet openings. .\n inlet pipe 9 connects to all otl the inlet openingsI T which are in a vertical line, and an outlet pipe l() connects to the similar outlet openings S. All of the inlet pipes are connected by other pieces ot pipe 11 to an inlety header 12, which has a main inlet pipe 13 connected to it. This main inlet pipe connects with a source ot cooling fluid under pressure which may be exerted by a pump or other means. Similarly. the outlet pipes 1() are connected by means ot the pipes 14 to the outletheader 15, which has a main outlet pipe 16 counected to it. Referring to Figs. 2 and 3, itl will be. seenthat, these space blocks have a back 17 with a raised edge 18. The outer edge is substantially circular, following the form ot the outer periphery ot' the laminations. The indentations 19 are made to avoid the keys upon which the laminations are assembled. The inner edge of the space blocks may have any desired shape and l have shown long projecting portions 2Q which lit between the teeth of. the laminae. The indentations 214 need only be deep enough to allow the Winding to be put in place and thus the space-blocks have substantially the configuration of the laininae. Batlle plates 22 may be used to cause the coolingliquid to lloW into the projecting portions 20. To edect a still slower circull, cover 23 may be riveted on or fastened in place in any other manner, so as to form a closed chamber except for the inlet and outlet openings 7 and 8.

there the machine is ot a small diameter a sluwe-block7 made as a whole7 without Each ot' these sections has a water inlet 4 lation more battle plates may be employed.

hens the me; e.

moet she space 70103551. number of sections luto wueh the Space pipe l?) emi theme im@ the net e E2, ewng Mound the header im@ the 'pipel and thence inte the pipes 9, 'whence E entere he space blocks prectcay at the spnc'e bloke finedein motions-"end separating same inne arou'gh he net epe/mugs; 7, @uw 52nd lemmaezs luto bundles5 @eeh of the euenmg eiaeut, 'the *emile pnfes gaduzy Seetmne of* me spyaee Meeks comprising a due te the* hea: when the 137011, ami nellj- 3 Ente che o becoming wanner carries away from ing out of the ou'tet openings e pipes 1G, tenee ini@ the pipes lf3 eonuet inte the euze heme l5. finds i415 way into main euiet pf f te be ii-spes 0f in an suabe way.

For convenience in struction, me ecmee coding iu ie. a, eem

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fem u wils of fixe spec@ back, a mused eompeey ebou sind baci; having nei; eutet openings and een/'er Hete 'fastened to sa edge se as to make the seeen *mier igh, said net openbeing one @n of and said outet opening at the oleziend ef the sem-,tiem

" e, dynemeeck maehne, a, sta.-

cere member having amnntens, ,v in seelzone :md separeng 'm'uud.es, euch ofv the blocks compriei'g u beek; :l ra-se, edge completely about said ta mty 1weed., es fer insieme? ethe the tsp er 'beek and ha* g inlety and eutet openings mn'tom o'' a 'lrswgenemee sue@ l e @over 'pae 'fastened to sani ege so Wherever necessary U'erenvb eenffe'meuis 51 si me plpmg Irmy aise be nu?, @ratei-red arrangement has the efventege vlWitnesses @Emmy .L 12eme E. 'VOGLLE'J. 

